Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost Overview
The Chest Style Ultra Low Freezers -40°C To -85°C, 9 cu.ft., Manual Defrost (ULF301C) is a laboratory ultra-low freezer from Yamato Scientific, holding a -40°C to -85°C range across 9 cu.ft. (255 L) of chamber capacity. LabSupplies.com supplies this unit as an authorized dealer. Sixteen racks fit inside, suiting long-term sample and biological storage.
Cascade refrigeration pairs two hermetic compressors with an air-cooled condenser and two heavy-duty fans, so no liquid coolant is required. CFC-free R-508B and R-404A refrigerants drive the system. Chamber walls use 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel powder-coated cool gray.
Power options cover 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz. Exterior dimensions measure 57.5" × 29" × 46.5", and the unit weighs 675 lbs. Made in the USA and UL Listed, this freezer includes battery-backed alarms and automatic power-failure recovery.
Key Features
- Microprocessor digital control: dual display shows set point and chamber temperature, with a scan button and tamper-proof lockout.
- Multi-stage alarm system: battery-operated audible and visual signals on mechanical or electrical failure, plus over- and under-temperature settings, a silencing switch, and a battery test switch.
- Remote alarm contacts: a relay is provided for remote alarm hook-up to building monitoring.
- Power failure recovery: an automatic timer system restarts the unit after a power interruption.
- Cascade refrigeration: two hermetic compressors with CFC- and HCFC-free R-508B and R-404A refrigerants reach -85°C.
- 1/2" access port: built-in port supports probes and external monitoring leads.
How to Choose the Right Ultra-Low Freezer
Ultra-low freezer selection comes down to matching storage volume, temperature class, and site power to your workflow. Weigh these axes before specifying a unit.
- Capacity: chamber volume and rack count determine how many vials, plates, or bags you can store; this model offers 9 cu.ft. (255 L) and 16 racks.
- Temperature range: confirm the unit reaches your required setpoint; a -40°C to -85°C range covers most enzyme, cell, and reagent storage.
- Control type: microprocessor digital control with dual display and lockout protects setpoints from accidental change.
- Voltage: verify your circuit; options span 115V, 208V, 230V at 60 Hz and 220V at 50/60 Hz, single-phase.
- Footprint: measure your space against the 57.5" × 29" × 46.5" exterior and 675 lb weight before delivery.
- Safety and monitoring: battery-backed alarms, remote contacts, and power-failure recovery guard samples during outages.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 9 cu.ft. |
| Temperature Range | -40°C to -85°C |
| Defrost | Manual |
| Interior Capacity | 255 L / 9 cu.ft. |
| Rack Capacity | 16 racks |
| Interior Dimensions | 46" × 16" × 20" (116 × 40 × 50 cm) |
| Exterior Dimensions | 57.5" × 29" × 46.5" (146 × 73 × 116 cm) |
| Temperature Control System | Digital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout |
| Refrigeration System | Cascade type — two hermetic compressors |
| Refrigerant | CFC-free R-508B and R-404A (CFC- & HCFC-free) |
| Condenser | Air-cooled with two heavy-duty fans; no liquid coolant required |
| Alarm System | Battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up |
| Power Failure Recovery | Automatic timer system restarts the unit after a power failure |
| Electrical Requirements | 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase |
| Optional Accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves |
| Material | Chamber is 14-ga. Zinc coated galvanized steel. Exterior is 16-ga. steel. Power coated cool gray |
| Country of Origin | USA |
| GTIN (Barcode) | 797059929863 |
| Shipping Weight | 675 lbs |
| Dimensions (L × W × H) | 62 × 40 × 55 in |
| Component Size | 9 CF |
| Other Certification | UL Listed |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| ULF-301C | EA | EA |
Documentation
More in This Series
- Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost
- Undercounter Ultra Low Freezers -40°C To -85°C, 2 cu.ft., Manual Defrost
- Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost
- Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 5 cu.ft., Manual Defrost
- Undercounter Ultra Low Freezers -40°C To -85°C, 3 cu.ft., Manual Defrost
- Chest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Why Buy From LabSupplies.com
LabSupplies.com ships the ULF301C directly from USA inventory, so you order the freezer you need without a quote process. Place the order online and our lab-equipment specialists stand by for any spec question.
- Authorized Yamato Scientific dealer: genuine unit backed by full manufacturer warranty.
- In stock: ready to ship from USA inventory.
- Specialist support: dedicated lab-equipment team for technical and specification questions.
- Direct ordering: purchase online, no PO chase or callback required.
Frequently Asked Questions
What temperature range does the ULF301C reach?
The ULF301C operates from -40°C to -85°C. A cascade refrigeration system using two hermetic compressors and CFC-free R-508B and R-404A refrigerants reaches the ultra-low end.
How much storage capacity does this freezer provide?
The chamber holds 9 cu.ft. (255 L) and accepts up to 16 racks. Interior dimensions measure 46" × 16" × 20" (116 × 40 × 50 cm).
What electrical supply does the ULF301C require?
The unit runs on 115V, 208V, or 230V at 60 Hz, single-phase, or 220V at 50/60 Hz, single-phase. Confirm your available circuit before installation.
What materials are used in construction?
The chamber is 14-gauge zinc-coated galvanized steel. The exterior is 16-gauge steel finished in powder-coated cool gray.
How does the freezer protect samples during a power failure?
An automatic timer system restarts the unit after a power failure. Battery-operated audible and visual alarms signal mechanical or electrical faults, and a relay supports remote alarm monitoring.
What are the exterior dimensions and weight for delivery planning?
The exterior measures 57.5" × 29" × 46.5" (146 × 73 × 116 cm) and the unit weighs 675 lbs. Verify your space and floor access before scheduling delivery.
